/Engine/Source/Runtime/RenderCore/Public/VirtualTexturing.h
Parameters needed to create anIAllocatedVirtualTextureDescribes both page table and physical texture size, format, and layout
struct FAllocatedVTDescription
union FAllocate...
@3017
uint8
AdaptiveLevelBias
uint8:  1
bPrivateSpace
Should the AllocatedVT create its own dedicated page table allocation? Can be useful to control total allocation.
uint8:  1
bShareDuplicateLayers
If the AllocatedVT has the same producer mapped to multiple layers, should those be merged into a single page table layer? This can make for more efficient page tables when enabled, but certain code may make assumption that number of layers specified when allocating VT exactly matches the resulting page page
uint8
Dimensions
uint8
ForceSpaceID
uint32
IndirectionTextureSize
uint32
MaxSpaceSize
FName
Name
uint8
NumTextureLayers
uint8
PackedFlags
FVirtualTexture...
ProducerHandle
Producer for each texture layer.
uint8[8]
ProducerLayerIndex
Local layer inside producer for each texture layer.
uint32
TileBorderSize
uint32
TileSize